However, certain biomarkers featured more prominently in these mathematical models than others, suggesting that they are particularly important factors in acute peritonitis, such as IL-1β and IL-15, each of which contributed to 3 different biomarker signatures, and the total cell count that was included in 4 different signatures and is thus likely to be of the utmost relevance in the diagnosis of PD patients. Here, IL1B is linked to peritonitis.